Heatwrapping a manifold

1. Benji-D L-plater Joined: Dec 2014 Barnsley Posts: 44 Vts mk2 - track spec

   #1 13th January 2015, 20:54

   how are people heatwrapping there exhausts? Do the majority just wrap it straight on or do people tend to paint it with flameproof paint first?
   going to be doing it in the next week and just wanted to get a rough idea if its worth painting it or not first, cheers guys
2. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #2 13th January 2015, 21:45

   Most just heatwrap onto bare metal and secure with metal cable ties.
3. Benji-D L-plater Joined: Dec 2014 Barnsley Posts: 44 Vts mk2 - track spec

   #3 13th January 2015, 22:50

   Quote:

   Originally Posted by stevo67 Most just heatwrap onto bare metal and secure with metal cable ties.

   well thats what i was gonna do but looking into it a bit more plenty of people (mostly americans) were painting the thing first, didnt know if it was some kind of extra safety precaution..
4. Pricklep Saxperience Hardcore! Joined: Mar 2008 Posts: 31279 Citroen Saxo VTS, S60 D5

   #4 14th January 2015, 02:08

   I wouldnt waste my money or time tbh.
5. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

   #5 14th January 2015, 08:47

   no noticable advantage on power -but does keep temps down in engine bay .
   you need to remove manifold to do it right and pull like bugerry on wrap to get it tight
   a bit of an art to make it look right and cheap e-bay wrapping is usually crap
   you 50ft to do it right
6. Benji-D L-plater Joined: Dec 2014 Barnsley Posts: 44 Vts mk2 - track spec

   #6 14th January 2015, 19:39

   Quote:

   Originally Posted by Prickle I wouldnt waste my money or time tbh.

   Damn too late i already bought it haha
7. Benji-D L-plater Joined: Dec 2014 Barnsley Posts: 44 Vts mk2 - track spec

   #7 14th January 2015, 19:44

   Quote:

   Originally Posted by axsaxoman no noticable advantage on power -but does keep temps down in engine bay . you need to remove manifold to do it right and pull like bugerry on wrap to get it tight a bit of an art to make it look right and cheap e-bay wrapping is usually crap you 50ft to do it right

   yeah im gonna take it off and give it a pull it really hard (pardon the obvious penis joke) to make sure its on right and gonna soak it in water first so that when it dries it'll be even tighter. i know it wont make any power differences but the cars in somewhat of a sorry state at the min and im going to turn it into a decent spec car and just want to get as much done as possible really
8. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

   #8 14th January 2015, 20:23

   What manifold have you got? Personally I would only fit heat wrap if you have a heat problem as wrap will restrict the metals natural expansion and contraction as it heats and cools. This can lead to the manifold cracking. If its not stainless then wrap can trap moisture and the manifold can rust prematurely. Otherwise its great stuff lol
9. Benji-D L-plater Joined: Dec 2014 Barnsley Posts: 44 Vts mk2 - track spec

   #9 14th January 2015, 21:34

   Quote:

   Originally Posted by KamRacing What manifold have you got? Personally I would only fit heat wrap if you have a heat problem as wrap will restrict the metals natural expansion and contraction as it heats and cools. This can lead to the manifold cracking. If its not stainless then wrap can trap moisture and the manifold can rust prematurely. Otherwise its great stuff lol

   its a 4-2-1 stainless manifold, the info you gave is good to know for future reference i just assumed the moisture would evaporate after giving it a good run.
10. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

    #10 15th January 2015, 07:53

    Quote:

    Originally Posted by Benji-D its a 4-2-1 stainless manifold, the info you gave is good to know for future reference i just assumed the moisture would evaporate after giving it a good run.

    It will be unfortunatley some heat wrap is made from material which when wet =hot has a chemical corrosive effect on things and if it is a cheap s/s maniofld the it will correode
    does it look nice and shiny or dull and brown --if so its a cheap chineese manifold which is not best quality s/s -which is why it is not still shiny
11. Benji-D L-plater Joined: Dec 2014 Barnsley Posts: 44 Vts mk2 - track spec

    #11 15th January 2015, 12:31

    Here's a pic of it, cheap chinese?
    
12. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

    #12 15th January 2015, 15:22

    cheap quality s/s at least
13. Benji-D L-plater Joined: Dec 2014 Barnsley Posts: 44 Vts mk2 - track spec

    #13 15th January 2015, 15:51

    ah, well ill wrap it and then if it corrodes away ill replace with a good branded hight quality s/s one, thanks for the input its appreciated